QMS-026-09.75-SL-D-A-TR Equivalent & Substitute Parts

Part Overview

The QMS-026-09.75-SL-D-A-TR is a 52-position connector header from Samtec Inc.'s Power Q2™ QMS series, designed for surface mount applications with outer shroud contacts and gold plating. This component is classified as an active product with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts may be required due to packaging availability, inventory constraints, or specific procurement requirements while maintaining identical electrical and mechanical specifications.

Substiute Parts

QMS-026-09.75-SL-D-A-TR

Samtec Inc.In Stock: 1086QMS-026-09.75-SL-D-A-TR Datasheet

Current PartRFQ

QMS-026-09.75-SL-D-A

Samtec Inc.In Stock: 952QMS-026-09.75-SL-D-A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the QMS-026-09.75-SL-D-A-TR is determined by the following critical parameters that must remain identical:

• Number of positions: 52
• Pitch: 0.025" (0.64mm)
• Number of rows: 2
• Connector type: Header, Outer Shroud Contacts
• Mounting type: Surface Mount
• Contact finish: Gold
• Contact finish thickness: 10.0µin (0.25µm)
• Height above board: 0.368" (9.35mm)
• Mated stacking heights: 14mm, 16mm
• Features: Board Guide, Ground Bus (Plane)
• Series: Power Q2™ QMS
• RoHS compliance: ROHS3 Compliant
• MSL rating: 1 (Unlimited)

The only allowable variation is packaging format. The primary part is supplied in Tape & Reel (TR) packaging, while substitute parts may be supplied in alternative packaging configurations such as Tray, provided all electrical and mechanical parameters remain unchanged.

Parameter Comparison

Engineering Selection Recommendations

Both the QMS-026-09.75-SL-D-A-TR and QMS-026-09.75-SL-D-A are active products manufactured by Samtec Inc. with identical electrical and mechanical specifications. Selection between these parts is determined by packaging requirements and procurement logistics rather than functional performance.

The QMS-026-09.75-SL-D-A-TR in Tape & Reel packaging is suitable for high-volume automated assembly processes. The QMS-026-09.75-SL-D-A in Tray packaging accommodates manual assembly workflows or lower-volume production runs.

Both parts maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility with standard surface mount assembly processes and storage conditions without moisture bake-out requirements.

Frequently Asked Questions (FAQ)

Q: Can QMS-026-09.75-SL-D-A (Tray) be used as a direct replacement for QMS-026-09.75-SL-D-A-TR (Tape & Reel)?

A: Yes. Both parts are electrically and mechanically identical. The difference is packaging format only. Tray packaging is suitable for manual pick-and-place or lower-volume assembly, while Tape & Reel is optimized for automated high-speed assembly equipment.

Q: Are there any differences in contact performance between these parts?

A: No. Both parts feature identical gold contact finish at 10.0µin (0.25µm) thickness, connector geometry, and electrical specifications.

Q: Do both parts require the same PCB footprint?

A: Yes. Both parts have identical mounting dimensions, height above board (0.368" / 9.35mm), and mated stacking heights (14mm, 16mm). PCB design and assembly tooling are interchangeable.

Q: What is the significance of the MSL 1 rating?

A: MSL 1 indicates unlimited shelf life without moisture bake-out requirements. Both parts can be stored and handled under standard warehouse conditions without special humidity controls.

Q: Are both parts RoHS compliant?

A: Yes. Both QMS-026-09.75-SL-D-A-TR and QMS-026-09.75-SL-D-A are ROHS3 compliant, meeting current environmental and regulatory requirements for electronic component manufacturing.